Response of cowpea (Viga sinensis Endl). to different levels of N, P & K

Abstract

A field trial was conducted at .the Rice Research Station, Pattambi to find out the response of cowpea to graded doses of N, P and K, under high rainfall conditions. The test variety PTB, exhibited significant response to N and P. The optimum doses of nutrients for maximum yield were 31 .67 kg N and 37.37 kg P205/ha. The economic doses of fertilisers were, 23.13 kg N and 23.55 kg P2O5 per ha Response to applied potash was not significant.